CN102155057A - Assembled lead shear damper - Google Patents
Assembled lead shear damper Download PDFInfo
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- CN102155057A CN102155057A CN 201110130816 CN201110130816A CN102155057A CN 102155057 A CN102155057 A CN 102155057A CN 201110130816 CN201110130816 CN 201110130816 CN 201110130816 A CN201110130816 A CN 201110130816A CN 102155057 A CN102155057 A CN 102155057A
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Abstract
The invention provides an assembled lead shear damper, which is easy to assemble and has stable performance. The damper comprises a middle pulling plate, an end part connection plate, a lead column, a first inner layer pulling plate and a second inner layer pulling plate; the first inner layer pulling plate and the second inner layer pulling plate are positioned on both sides of the middle pulling plate and both sides of the end part connection plate; a middle layer lead column hole and a middle layer pin hole are formed on the middle pulling plate; the first inner layer pulling plate and the second inner layer pulling plate form an inner layer pulling plate; the inner layer pulling plate comprises an inner layer pulling plate main body on which an inner layer lead column hole and an obround limiting hole are formed; the inner layer lead column hole is positioned at one end of the inner layer pulling plate main body; the other end of the end part connection plate is connected with the inner layer pulling plate main body; a connection pin is arranged in the middle layer pin hole of the middle pulling plate and passes through the obround limiting hole of the inner layer pulling plate; the inner layer lead column hole is coaxial with the middle layer lead column hole; and the lead column is positioned in the inner layer lead column hole and the middle layer lead column hole. By changing of a shear area of the lead column, such as increasing of the diameter or the number of shear surfaces of the lead column, output force can be increased.
Description
Technical field
The present invention is a kind of assembling lead shear damper, by setting effective lead block surface of shear, consumes the structural system energy, structure is played the effect of energy-dissipating and shock-absorbing (shaking).Since lead loss can validity, this assembling lead shear damper can be widely used in the power consumption support, bridge damping of building structure etc.
Background technology
Energy-dissipating and shock-absorbing (shaking) technology is a kind of effective structure control technology, and it is by in the appropriate location of structure energy-dissipating and shock-absorbing (shaking) device being installed, to reduce the dynamic response of structure under earthquake, strong wind or other dynamic load function.Lead damper is a kind of effective damping device that is widely used in the engineering structures damping.Common have plumbous extrusion pressing type and a plumbous shearing-type.In the last few years, some novel lead dampers appearred successively, as bright rotary type lead shear damper and the board-like shearing type lead damper that waits exploitation of the Yan Wei of Beijing University of Technology; Rotary type shearing damp device is mainly used in bean column node, and this damper will be had an effect when bean column node deforms in the earthquake; The Zhou Yun of Guangzhou University etc. has developed plumbous damping tube damper.
Both there are some researches show that lead damper (shearing-type, extrusion pressing type) has following characteristics: (1) can obtain good energy dissipation capacity under small deformation; (2) except that the column type damper, other damper hysteretic loop curves have typically " Coulomb friction " characteristic, and mechanical model is simple; (3) load frequency and cycle-index are less to the service behaviour influence, have good stable and durability; (4) simple structure, easily manufactured.
Fig. 1 and Fig. 2 are respectively a kind of common plumbous extruding and lead shear damper.The former is by the lead in flanged central axis extruding closed cavity, with consumed energy; The latter is by lead block generation shear strain consumed energy.The shortcoming of lead extrusion damper shown in Figure 1 is closed cavity is irritated comparatively complexity of splicer's skill; The shortcoming of lead shear damper shown in Figure 2 is a lead block and sliding panel and effective comparatively difficulty that is connected of cover plate up and down.
The present invention constructs a kind of novel assembling lead shear damper according to the characteristics of existing lead damper, has solved plant complexity, lead block of filling splicer to a great extent and has connected problems such as complexity.The assembling lead shear damper that the present invention proposes can be widely used in the power consumption support, bridge damping of building structure etc.; Have simple structure, easy to process, the excellent characteristics of power consumption effect.
Summary of the invention
Technical problem
The invention provides a kind of simple structure, easy to process, stable performance, assembling lead shear damper that energy dissipation capacity is strong.
Technical scheme
A kind of assembling lead extrusion damper of the present invention, arm-tie in the middle of comprising, the end junction plate, lead block, the first internal layer arm-tie and the second internal layer arm-tie, the both sides of arm-tie and end junction plate in the middle of the first internal layer arm-tie and the second internal layer arm-tie lay respectively at, on middle arm-tie, be provided with lead block hole, middle level and middle level pin-and-hole, the described first internal layer arm-tie and the second internal layer arm-tie are the internal layer arm-tie, described internal layer arm-tie comprises internal layer arm-tie body, on internal layer arm-tie body, be provided with the end that internal layer lead block hole and Long Circle spacing hole and internal layer lead block hole are positioned at internal layer arm-tie body, the other end of described end junction plate is connected with internal layer arm-tie body, in the pin-and-hole of the middle level of middle arm-tie, be provided with the Long Circle spacing hole that connecting pin and described connecting pin pass the internal layer arm-tie, described internal layer lead block hole is coaxial with lead block hole, middle level, and lead block is arranged in internal layer lead block hole and lead block hole, middle level.
Beneficial effect
The invention provides the assembling lead shear damper of a kind of simple structure, easy to process, stable performance.Related parts get final product by simple assembling, both need not to irritate plumbous, also need not to be provided with complicated structure to connect lead block and steel plate.Both there are some researches show that the lead damper energy dissipation capacity was strong, be not subjected to work sclerosis or tired influence, had good stable and durability, can be widely used in vibration damping (shake) power consumption of engineering structures.The assembling lead shear damper that the present invention proposes has the general character of traditional lead damper.The energy dissipation capacity of lead shear damper is directly related with the plumbous area of shearing, thereby can be by changing the shearing area of lead block, to reach the requirement of power consumption and output damping force.The method of common change lead block shearing area comprises: (1) increases the lead block diameter; (2) quantity of increase lead block surface of shear.
For the power consumption effect of this damper is described, carry out simple example as a means of explanation based on the finite element platform.For simplicity, ignoring friction between buck plate and other to the less factor of damper power output influence, is example with 4 lead block surface of shear, analyzes the energy dissipation behavior of this damper based on the Abaqus platform.Take following supposition in the FEM (finite element) model: the coefficient of contact friction of (1) steel plate and lead block is 0.02; (2) Qian material behavior is taked this structure of ideal elastic-plastic, and poisson's ratio is got 0.42 characteristics to consider that its compressibilty is little; (3) elastic deformation only takes place in steel plate.
Suppose that the lead block diameter is that 100mm, steel plate thickness are 20mm, set up nonlinear finite element analysis model as shown in Figure 3, unit and node number are respectively 24840 and 15380.Adopt 8 nodes reduction integration solid element C3D8R simulation lead block and steel plate; The mesh-density of lead block greater than the mesh-density of steel plate to help the non-linear convergence of finding the solution; Between lead block and steel plate hard the contact is set, i.e. the not penetrable steel plate of lead block; Constraint lead block translational degree of freedom vertically.Because it is bigger that lead block is out of shape in shear history,, adopt the Explicit solver to intend static analysis in the literary composition, and the lead block unit is carried out the quality convergent-divergent for saving computing time and being convenient to the model convergence.Consider material and geometrical non-linearity simultaneously in the non-linear plan static analysis.Steel plate one end node is provided with fixed boundary, and other end node is provided with the translational velocity fringe conditions, and speed loads course as shown in Figure 4, and corresponding end displacement time-histories as shown in Figure 5.
The hysteresis loop of this damper as shown in Figure 6, as seen from Figure 6, (1) this hysteretic loop is comparatively full, the initial stiffness of strong (2) damper of energy dissipation capacity is bigger, destroy in case the lead block generating unit divides to shear, its damper power output changes less, and the rigidity after the lead block surrender is relevant with the rigidity of steel plate; (3) burr partly acutely causes owing to lead block is out of shape on the hysteresis loop.With regard to example, the about 440kN of maximum power output of this damper, the method for increase damping force is as previously mentioned.
Description of drawings
Further the present invention will be described below in conjunction with drawings and embodiments.
Fig. 1 tradition lead extrusion damper.
Fig. 2 tradition lead shear damper.
Fig. 3 assembling lead shear damper is simplified FEM (finite element) model.
Fig. 4 speed loads time-histories.
Fig. 5 displacement time-histories.
Displacement-the line of load of Fig. 6 assembling lead shear damper.
Arm-tie 3-D view in the middle of Fig. 7.
The outer arm-tie 3-D view of Fig. 8.
Fig. 9 internal layer arm-tie 3-D view.
Figure 10 end junction plate 3-D view.
Figure 11 liner plate 3-D view.
Figure 12 lead block 3-D view.
Figure 13 lead block shrouding 3-D view.
Figure 14 assembling lead extrusion damper plan view.
Figure 15 assembling lead extrusion damper elevation.
A-A section among Figure 16 Figure 14.
B-B section among Figure 17 Figure 15.
Figure 18 assembling lead shear damper 3-D view (not containing shrouding).
Figure 19 assembling lead shear damper 3-D view.
Have among the above figure: middle arm-tie (1), end junction plate (4), lead block (9), the first internal layer arm-tie and the second internal layer arm-tie, connecting pin (8), the first lead block shrouding (61) and the second lead block shrouding (62) first outside arm-ties (21) and second outside arm-tie (22).
The specific embodiment
A kind of assembling lead shear damper, arm-tie 1 in the middle of comprising, end junction plate 4, lead block 9, the first internal layer arm-tie and the second internal layer arm-tie, the both sides of arm-tie 1 and end junction plate 4 in the middle of the first internal layer arm-tie and the second internal layer arm-tie lay respectively at, on middle arm-tie 1, be provided with lead block hole, middle level 11 and middle level pin-and-hole 12, the described first internal layer arm-tie and the second internal layer arm-tie are internal layer arm-tie 3, described internal layer arm-tie 3 comprises internal layer arm-tie body 30, on internal layer arm-tie body 30, be provided with the end that internal layer lead block hole 31 and Long Circle spacing hole 32 and internal layer lead block hole 31 are positioned at internal layer arm-tie body 30, the other end of described end junction plate 4 is connected with internal layer arm-tie body 30, in the middle level of middle arm-tie 1 pin-and-hole 12, be provided with the Long Circle spacing hole 32 that connecting pin 8 and described connecting pin 8 pass internal layer arm-tie 3, described internal layer lead block hole 31 is coaxial with lead block hole 11, middle level, and lead block 9 is arranged in internal layer lead block hole 31 and lead block hole, middle level 11.In the present embodiment,
Be respectively equipped with first outside arm-tie 21 and second outside arm-tie 22 in the outside of the first internal layer arm-tie and the second internal layer arm-tie, described connecting pin 8 stretches out and passes an end of first outside arm-tie 21 and an end of second outside arm-tie 22 respectively, the other end of the other end of first outside arm-tie 21 and second outside arm-tie 22 is connected with middle arm-tie 1 respectively, and described lead block 9 stretches out and passes an end and second outside arm-tie 22 of first outside arm-tie 21 respectively.
Be respectively equipped with the first lead block shrouding 61 and the second lead block shrouding 62 that is used to cover lead block 9 at first outside arm-tie 21 and second outside arm-tie 22.
Case study on implementation:
Case study on implementation as shown in figure 19: the middle arm-tie 1 and the first internal layer arm-tie and the second internal layer arm-tie can adopt high-strength bolt 7 to be connected and fixed; The end junction plate 4 and the first internal layer arm-tie and the second internal layer arm-tie also can adopt high-strength bolt 7 to be connected and fixed; The space adopts liner plate 5 to fill and lead up between first outside arm-tie 21 and second outside arm-tie 22 and the middle arm-tie 1, and high-strength bolt 7 passes first outside arm-tie 21, second outside arm-tie 22, middle arm-tie 1 and liner plate 5, applies certain prestressing force and carries out fastening.Connecting pin (8) also can adopt high-strength bolt, and 3 internal layer arm-ties, first outside arm-tie 21 and second outside arm-tie 22 are applied certain prestressing force, to improve friction effect, to strengthen energy dissipation capacity.
Center arm-tie 1 can weld with associated components with end junction plate 4 ends or bolt is connected to be mounted in the structure that needs damping.
The length of the Long Circle spacing hole 32 of internal layer arm-tie 3 need be looked damping and be required to be provided with, and the length of slotted hole 32 should be near 2 times of shock-damping structure demand displacement limit value.
The end face that adopts high-strength bolt to connect need carry out rubbing surface to be handled, and executes and twists the pretightning force that needs to consider the high-strength bolt design specifications.High-strength caging bolt 8 limits lead block 9 both sides arm-ties on the one hand and rotates around lead block, can provide certain frictional force on the other hand, helps the energy dissipation capacity of assembling lead shear damper.High-strength caging bolt 8 pretightning forces can be considered half of design load, and excessive pretightning force can cause the initial stiffness of damper excessive, and are unfavorable for the structural safety of assembling lead shear damper.
Claims (3)
1. assembling lead shear damper, it is characterized in that, arm-tie (1) in the middle of comprising, end junction plate (4), lead block (9), the first internal layer arm-tie and the second internal layer arm-tie, the both sides of arm-tie (1) and end junction plate (4) in the middle of the first internal layer arm-tie and the second internal layer arm-tie lay respectively at, on middle arm-tie (1), be provided with lead block hole, middle level (11) and middle level pin-and-hole (12), the described first internal layer arm-tie and the second internal layer arm-tie are internal layer arm-tie (3), described internal layer arm-tie (3) comprises internal layer arm-tie body (30), on internal layer arm-tie body (30), be provided with the end that internal layer lead block hole (31) and Long Circle spacing hole (32) and internal layer lead block hole (31) are positioned at internal layer arm-tie body (30), the other end of described end junction plate (4) is connected with internal layer arm-tie body (30), in the middle level pin-and-hole (12) of middle arm-tie (1), be provided with the Long Circle spacing hole (32) that connecting pin (8) and described connecting pin (8) pass internal layer arm-tie (3), described internal layer lead block hole (31) is coaxial with lead block hole, middle level (11), and lead block (9) is arranged in internal layer lead block hole (31) and lead block hole, middle level (11).
2. assembling lead shear damper according to claim 1, it is characterized in that, be respectively equipped with first outside arm-tie (21) and second outside arm-tie (22) in the outside of the first internal layer arm-tie and the second internal layer arm-tie, described connecting pin (8) stretches out and passes an end of first outside arm-tie (21) and an end of second outside arm-tie (22) respectively, the other end of the other end of first outside arm-tie (21) and second outside arm-tie (22) is connected with middle arm-tie (1) respectively, and described lead block (9) stretches out and passes an end and second outside arm-tie (22) of first outside arm-tie (21) respectively.
3. assembling lead shear damper according to claim 2 is characterized in that, is respectively equipped with the first lead block shrouding (61) and the second lead block shrouding (62) that is used to cover lead block (9) at first outside arm-tie (21) and second outside arm-tie (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101308162A CN102155057B (en) | 2011-05-18 | 2011-05-18 | Assembled lead shear damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101308162A CN102155057B (en) | 2011-05-18 | 2011-05-18 | Assembled lead shear damper |
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| CN102155057A true CN102155057A (en) | 2011-08-17 |
| CN102155057B CN102155057B (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101308162A Expired - Fee Related CN102155057B (en) | 2011-05-18 | 2011-05-18 | Assembled lead shear damper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999307A (en) * | 2018-09-29 | 2018-12-14 | 上海应用技术大学 | A kind of multistage energy-dissipating and shock-absorbing component of adjustable rigidity |
| CN110056239A (en) * | 2019-04-11 | 2019-07-26 | 横琴共轭科技有限公司 | A kind of metal damping unit |
| CN111386371A (en) * | 2017-09-25 | 2020-07-07 | 李圭烈 | Steel multi-slit damper capable of improving anti-seismic and damping performance |
| CN111926690A (en) * | 2020-08-06 | 2020-11-13 | 广州大学 | Novel pier is assembled in prefabrication |
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| CN201301502Y (en) * | 2008-11-19 | 2009-09-02 | 华中科技大学 | Rubber lead core damper |
| CN101775855A (en) * | 2009-10-30 | 2010-07-14 | 清华大学 | Metal bending energy-consuming damper for preventing tension and compression and yield |
| CN201598745U (en) * | 2009-10-23 | 2010-10-06 | 广州大学 | Anti-twisting lead viscoelastic composite damper |
| CN202099894U (en) * | 2011-05-18 | 2012-01-04 | 东南大学 | Assembled type lead shear damper |
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2011
- 2011-05-18 CN CN2011101308162A patent/CN102155057B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1264776A (en) * | 2000-03-10 | 2000-08-30 | 东南大学 | Vertical earthquake isolating equipment for engineering structure |
| CN2763375Y (en) * | 2004-12-30 | 2006-03-08 | 北京工业大学 | Composite lead energy dissipation device with built-in steel board |
| CN1932180A (en) * | 2006-10-13 | 2007-03-21 | 北京工业大学 | Level shearing three-dimensional vibration isolating device |
| US20080283712A1 (en) * | 2007-05-17 | 2008-11-20 | Yung-Feng Su | Seismic damper |
| CN101173535A (en) * | 2007-11-15 | 2008-05-07 | 滕军 | Coupled shearing force wall energy-dissipation beam-coupled steel plate damper and its using method |
| CN201301502Y (en) * | 2008-11-19 | 2009-09-02 | 华中科技大学 | Rubber lead core damper |
| CN201598745U (en) * | 2009-10-23 | 2010-10-06 | 广州大学 | Anti-twisting lead viscoelastic composite damper |
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| CN202099894U (en) * | 2011-05-18 | 2012-01-04 | 东南大学 | Assembled type lead shear damper |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111386371A (en) * | 2017-09-25 | 2020-07-07 | 李圭烈 | Steel multi-slit damper capable of improving anti-seismic and damping performance |
| CN108999307A (en) * | 2018-09-29 | 2018-12-14 | 上海应用技术大学 | A kind of multistage energy-dissipating and shock-absorbing component of adjustable rigidity |
| CN108999307B (en) * | 2018-09-29 | 2020-06-19 | 上海应用技术大学 | Multistage energy consumption shock attenuation component of adjustable rigidity |
| CN110056239A (en) * | 2019-04-11 | 2019-07-26 | 横琴共轭科技有限公司 | A kind of metal damping unit |
| CN111926690A (en) * | 2020-08-06 | 2020-11-13 | 广州大学 | Novel pier is assembled in prefabrication |
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| CN102155057B (en) | 2012-08-22 |
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